Batman: Arkham City is to be given a well-deserved Game of the Year treatment next month, and as well as including the Catwoman, Nightwing and Robin DLC add-ons, it'll also include a download of the Batman Year One animated movie and the teased Harley Quinn DLC.

Entitled 'Harley Quinn's Revenge' the new story episode is referred to as 'the final chapter' in the Game of the Year Edition trailer, which also shows a tantalising glimpse of Ms. Harleen Quinzel in a new get up, brandishing a gun. Seems she hasn't taken Arkham City's conclusion all that well...

Batman: Arkham City Game of the Year Edition will be coming on May 29th, 2012 in North America, which hopefully (presumably) means that it'll be heading to Europe on June 1st, although nothing's been confirmed yet. Looks like we'll be seeing Harley Quinn's Revenge in May too. Check out the trailer below.